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Hammer Coral, scientifically known as Euphyllia ancora, is a popular choice for reef aquariums due to its distinctive appearance and vibrant colors. This coral is characterized by its long, cylindrical tentacles that resemble hammers or clubs, which can extend and retract, creating a dramatic and elegant display. The Hammer Coral can come in various colors, including green, pink, and purple, often with contrasting tips. Its structure can range from branching to more bushy forms, depending on the environment and care.
Care Tips:
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Lighting: Hammer Corals thrive under moderate to high lighting. They benefit from light that supports their photosynthetic symbiotic algae, zooxanthellae. LED or T5 lighting systems are effective, but be cautious of excessive lighting, which can lead to bleaching.
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Water Flow: They prefer moderate water flow. Strong currents can damage the coral's delicate tentacles, while too little flow can result in poor gas exchange and accumulation of detritus. Gentle to moderate flow helps the coral maintain its health and ensures its tentacles are well-extended.
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Water Conditions: Maintain stable water parameters to keep your Hammer Coral healthy:
- Temperature: 72-78°F (22-26°C)
- pH: 8.1-8.4
- Specific Gravity: 1.023-1.025
- Calcium: 400-450 ppm
- Alkalinity: 8-12 dKH Regular water changes and a well-functioning filtration system are important for maintaining these conditions.
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Feeding: While Hammer Corals primarily rely on photosynthesis, they can benefit from additional feeding. Offer small meaty foods such as mysis shrimp, brine shrimp, or finely chopped seafood 1-2 times a week. This supplemental feeding supports their growth and overall health.
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Placement: Place the Hammer Coral on the substrate or a stable rock where it has room to expand. Avoid positioning it near aggressive corals, as it can be stung by their nematocysts. Ensure the coral receives appropriate lighting and flow, and provide space for its tentacles to fully extend.
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Maintenance: Regularly inspect the coral for any signs of stress or disease, such as retracted tentacles, discoloration, or damage. Keeping the tank clean and monitoring water quality can help prevent common issues.
With the right care, the Hammer Coral can be a stunning and dynamic addition to your reef tank, adding color and movement with its unique, hammer-like tentacles.